Kalshi partners with The Weather Company on weather data and app distribution
Kalshi has partnered with The Weather Company, operator of Weather.com and The Weather Channel app, to supply enterprise weather data for settling climate-prediction markets. The deal, announced August 27, 2026, also brings Kalshi's real-time probability data to The Weather Channel app. Kalshi expects $1.1 billion in weather trading volume for 2026. The platform is switching settlement for daily temperature markets from the National Weather Service to The Weather Company, effective August 14.
The Weather Company deal defends Kalshi's fastest-growing vertical at the exact moment Polymarket's Sportradar expansion threatens its sports position. Weather contracts are Kalshi's volume lead, and exclusive data now keeps competitors from challenging settlement integrity there. For traders, app-embedded probabilities turn weather forecasting into passive discovery, pulling retail users off-platform and into Kalshi markets without a dedicated app visit.
The risk is product concentration: deep investment in climate contracts leaves sports and politics exposed while Polymarket piles on leagues and streaming. If weather volume misses the $1.1 billion target, Kalshi's revenue mix looks lopsided against a rival with broader event coverage.